NAME

rwall − write to all users over a network

SYNOPSIS

/usr/etc/rwall hostname...
/usr/etc/rwall −n netgroup...
/usr/etc/rwall −h hostname −n netgroup

AVAILABILITY

This command is available with the Networking Tools and Programs software installation option.  Refer to Installing the SunOS for information on how to install optional software. 

DESCRIPTION

rwall reads a message from standard input until EOF.  It then sends this message, preceded by the line ‘Broadcast Message ...’, to all users logged in on the specified host machines.  With the -n option, it sends to the specified network groups, which are defined in netgroup(5). 

A machine can only receive such a message if it is running rwalld(8C), which is normally started up from /etc/servers by the daemon inetd(8C). 

FILES

/etc/servers

SEE ALSO

wall(1), netgroup(5), inetd(8C), rwalld(8C), shutdown(8)

BUGS

The timeout is fairly short in order to be able to send to a large group of machines (some of which may be down) in a reasonable amount of time.  Thus the message may not get through to a heavily loaded machine. 

Sun Release 4.0  —  Last change: 17 December 1987